• 대한영양사협회학술지
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• 제11권1호
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• pp.86-94
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• 2005

This study was conducted to examine bone mineral density and factors which effect on bone mineral density such as daily nutrients intake, age, menarch age and physical condition among healthy female college students in Daegu area from April 20, to May 20, 2004. 1. Average age was 20.5$\pm$0.96 years old, average height was 160.9$\pm$4.30㎝, and average weight was 55.9$\pm$7.67㎏. Body mass index was 21.6$\pm$2.91㎏/㎡, body fat was 25.6$\pm$5.79％, menarche age was average 12.5$\pm$1.1 years old and WHR(waist/hip circumference ratio) was 0.8$\pm$0.01㎝/㎝. 2. Average level of bone mineral density(T-score -0.56$\pm$0.91) was in normal range. But, 11 persons(24.4％) are over T-score -1.0, 33 persons(73.4％) were within -1.0 - -2.5 and one person(2.2％) was under -2.5. It is very anxious level for Osteopenia-low bone mass, as research result shows 73.4% of the subject of examine on the level of Osteopenia. 3. Daily calorie intake was 2,550㎉ and each nutrient intake, compared to the seventh recommended dietary allowances for korean, was as follows ; Calorie 112％, protein 123％, calcium 78％, phosphorus 137％, iron 68％, vitamin A 101％, vitamin $B_1$ 141％, vitamin $B_2$ 95％, niacin 107％, vitamin C 128％ and zinc 120％. The ratio of calcium to phosphorus(Ca/P) is 0.66, low compared to RDA, but phosphorus intake is so high compared to RDA that precautions should be taken. The ratio of calcium to protein(Ca/Protein) is 8.55. 4. Menarche age and bone mineral density of calcaneus showed positive correlation and body mass index(BMI) indicated positive correlation. Age, height, weight. WHR and physical activity coefficient all do not indicate any significant correlation with bone mineral density. 5. Intake of Calorie, Ca, Ca/p ratio, carbohydrate and fat intake were positively correlated and, protein was negatively correlated, and Fe, Na, P and cholesterol were negatively correlated with BMD. These results indicate that average bone mineral density of subjects was in normal range, but subjects in the stage of osteopenia-low bone mass are many and bad effects are expected to have on their bone mineral density after menopause. Therefore, in order reach maximal bone mineral density, they should improve the balance between calcium and phosphorus and reduce salt intake. And it is thought that education and profound studies on relevant factors affecting the genesis of bone mineral density should be made.

• 한국인구학
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• 제32권1호
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• pp.93-111
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• 2009

이 연구는 Wolfbein-Wool 노동생명표를 변형한 결혼생명표를 이용하여 교육상태에 따른 한국인의 평균유배우기대여명 차이를 알아보고자 하였다. 2005년 인구총주택조사와 사망원인통계자료를 사용하였고 교육수준은 초등학교이하, 중학교, 고등학교, 대학교이상 총 4개 집단으로 구분하였다. 유배우율, 이혼율, 사별률과 사망률을 기초자료로 사용하였다. 이 연구의 결과는 다음과 같다. 1. 유배우기대여명은 교육수준이 높은 집단이 높게 나타났다. 연령이 높아지면서 중학교와 고등학교 교육수준을 가진 사람의 격차가 크지 않았고 남자의 경우 더 높게 나타나기도 하였다. 2. 같은 교육수준을 가진 남자가 여자보다 유배우기대여명이 더 길었다. 3. 30세에 결혼한 남자는 대부분의 삶을 배우자와 살지만 모든 교육수준에서 여자는 홀로 10년 이상 사는 것으로 나타났다. 결론적으로 유배우기대여명은 교육수준에 따라 연령별, 성별 차이가 있었다. 결과에 영향을 주는 변수인 유배우율은 교육수준이 높은 집단일수록 높았고, 이혼율은 교육수준이 높은 집단이 낮은 연령에서는 낮았지만 연령이 높아지면서 제일 높았다. 한편 사별률은 배우자의 사망을 뜻하는데 같은 교육수준을 가진 사람들끼리 결혼하는 것으로 나타나 교육수준별 사망 형태를 가졌다.

• 한국식생활문화학회지
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• 제6권4호
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• pp.413-419
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• 1991

This study aims to evaluate the degree of malnutrition of children by three nutritional indicators-Weight for Age, Hight for Age, Weight for Height. The results are as follows; The average height and weight of children are much lower than Korea average height and weight. In terms of Weigh for Age, 20-40% of the samples belongs to below-2 standard deviation from the mean of reference group. 90% of the samples falls into the region below the mean. The standard deviation score indicates negative sign for eighty to ninety percent of the samples. The malnutrition of the samples is also confirmed in terms of Height for Age. In terms of Weight for Height, the mean of the samples is not significantly different from that of the reference group. Tests of the nutritional status under basis of three nutritional indicators show that approximately 50% of the samples had suffered from malnutrition and 17% of the samples have suffered from malnutrition.

• 대한지역사회영양학회지
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• 제4권1호
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• pp.3-10
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• 1999

This study was designed to investigate the malnutrition rate with anthropometric indices for the nutrient intake of 74 children aged 4-12 years old in three child welfare institutions in Cheonan city. The average heights and weights of the children are much lower than the Korean average height and weight. The mean BMI is $17.0{\pm}1.53$. In terms of height-for-age, 16.0% of the samples belong to below -2 standard deviation from the mean of the reference group. In terms of weight-for-age, 16.0% of the children belong to below -2 standard deviation. In terms of weight-for-height, 4.0% of the children belong to below -2 standard deviation. The standard deviation scores(Wt/Age, Ht/Age) indicate negative signs for seventy to eighty percent of the children. This is due to the lower consumption of the important nutrients that children consumed and almost all nutrients much less than the recommended daily allowances. Special nutrition welfare policies and programs targcting child welfare institutions should be developed to provide adequate nutrition for children in residential care.

• 한국시스템다이내믹스연구
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• 제6권1호
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• pp.177-192
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• 2005

A system dynamics model is developed to investigate policies for the school-age child weights and heights. The model is based upon the system dynamic model of Soonhee lee(2003), the purpose of which was policy analysis for obese control of adult people. Although the purpose and target people are different, the main structure can be applied to in the same way. Besides the carbohydrate, protein, and fat material, the new model covers hormone and heights with new input mechanisms for foods and activities. The simulation results matches well with the average school-age children in Korea with the average inputs data (foods and activities). The model can be used for various purposes such as policy analyses, care plan for obese children, etc.

• Journal of Nutrition and Health
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• 제31권9호
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• pp.1446-1456
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• 1998

Bones are important parts in sustaining the shape of the body, but they are also metabolic organs which undergo bone remodeling by constant bone resorption and formation. Osteoporosis, the typical metabolic bone disease, is characterized by a reduction in bone mineral density (BMD). Women more than men are at risk fir osteoporosis-related fractures, especially in the lumbar spine, wrist, and hip region. Risk of fracture depends on one's BMD, which open determined by the peak bone mass value achieved at skeletal maturity and followed by subsequent age-and menopause-related bone loss. Genetic and environmental factors are known to play a key role in bone metabolism and diet is considered as one of the important environmental factors. The purpose of the present study was to assess the status of BMD and bone mineral content(BMC) to clarify the relationships between dietary intakes and the risk of osteoporosis in adult women in Taegu. Subjects were 130 healthy females in between 20 and 69 years of age. BMD and BMC of the lumbar spine(venebrae L2-4) of the subjects were measured by dual energy X-ray absorptiometry. The average age of the subjects was 47.4${\pm}$11.7 years old, the average weight was 57.2${\pm}$8.4kg, the average age of menarche was 16.6${\pm}$1.9 years old and the average age of menopause was 48.4${\pm}$5.3 years old. The nutrient intakes of the subjects measured by the convenient method were generally lower than the level of RDA. The result of nutrient intake assessed has shown that the average energy intake was 1701${\pm}$316kca1 which is 85.1% of the RDA and the average calcium intake was 485.4${\pm}$172.3mg which is 69.3% of the RDA. The intakes of protein, vitamin A, vitamin B$_1$, niacin were greater than the RDA, whereas the remaining nutrient intakes were lower than the RDA. The average BMD of the subjects was shown to be 1.06${\pm}$1.09g/$\textrm{cm}^2$. The highest BMD of 1.24${\pm}$0.14g/$\textrm{cm}^2$ was noticed in the subjects of 30s compared to 20s, 40s, 50s, 60s. The BMD values were compared by the relative body weight(R3W) of the menopause subjects, and it was found that the underweight group had significant lower BMB while the rest of the groups did not have any differences in BMD. The most strongly correlated nutrient with BMD among the menopause subjects appeared to be calcium. The women whose Ca intakes were higher than 500mg showed the significantly higher BMD than those with Ca intakes lower than 500mg. This study suggests that the most effective way to prevent osteoporosis and to reduce the incidences of fractures seems to be minimizing bone loss through the adequate intake of calcium as well as avoiding underweight, especially in menopausal women. (Korean J Nutrition 31(9) . 1446-1456, 1998)

• 한국콘텐츠학회논문지
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• 제13권12호
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• pp.738-747
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• 2013

본 연구의 목적은 베이비붐 세대의 노후준비도에 영향을 미치는 요인을 알아보고 이를 바탕으로 베이비붐 세대의 노후생활 준비 향상을 위한 기초 자료를 제공하고자 한다. 연구결과 인구사회학적 특성에서는 성별, 연령, 건강상태, 월평균소득이 그리고 노후태도, 노후불안이 노후준비도에 유의미한 영향력이 있는 것으로 나타났다. 즉 남자보다는 여자가, 연령이 높을수록, 건강상태가 좋을수록, 월평균소득이 높을수록 그리고 노후태도가 높을수록, 노후불안이 낮을수록 노후준비도가 높게 나타났다. 이러한 연구결과를 근거로 정책제언을 하면, 첫째, 인구사회학적 특성에 따라 세대별 욕구와 특성에 맞는 노후준비 서비스가 개발되어야 한다. 둘째, 노후태도를 높일 수 있는 의식변화와 단계별 노후생활 준비교육이 필요하다. 셋째, 노후불안을 낮출 수 있는 다양한 정신건강 프로그램이 개발 보급되어야 한다.

• 농촌의학ㆍ지역보건
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• 제3권1호
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• pp.10-17
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• 1978

There are numerous reports on menarche age in korea and other countries but only few reports are available on menopausal age. This is a result of surveys on 509 women for menarche and 341 women for manopause among the rural areas of Choongnam and Kyungbuk province. For those born between 1894 and 1929. aver age ageof menarche was 16.63 years. The earliest was 13 years and latest was 22 years old. Majority (78.8%) had their menarohe at the age of between 15 and 18. It was noted that there was gradual advancement of menarche age among those born in later years than earlier. More menarche started in the months of October and April and fewest was in the month of June. Spring was the time when the largest number of women had menarche and this was followed by Autumn. Winter, and Summer. The most common menstrual cycle was 39 days type which is followed by 28 days and 26 days. The average monpausal age among rural korean women was 46.97 years. The number of years between menarche and menopause appears to be dependent upon individual physical and mental condition. socioeconomical circumstances. and also hereditary as well as ethnic differences. 87.1 % of rural korean women had menstrual ages of between 20 to 35 years according to this statistics and the average was 29.67 years.

• Journal of Nutrition and Health
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• 제29권5호
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• pp.517-527
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• 1996

The food consumption of 148 healthy infants from 4 to 6 months of age have been measured. Three groups were assigned to change of feeding pattern. Formula group(FF, n=102) were fed formula from birth till 6 months of age. Convert 1 group (C1F, n=14) and Convert 2 group (C2F, n=32) were fed breast milk and mixed milk at 2months of age afterthat switched to formula milk, respectively. All infants received solids (solid foods) from 4 months of age. No significant difference was found in the intake of nutrients among three feeding groups excluding carbohydrate intake of C1F-female at 4 months of age. No significant difference was found in the intake of nutrients among three feeding groups excluding carbohydrate intake of C1F-female at 4 months of age. The FF-female(70.9g/d) and C2F-female(66.9g/d) had significantly higher carbohydrate intake when compared to the C1F-female (54.3g/d). The average total energy intake at 4, 6 months were 648.3 and 709.7kcal/d among all infants. At 4 and 6 months of age, mean intake of nutrients was as follows. Calcium intake was 526.7mg/d and 760.0mg/d at 4 and 6 months of age respectively. Iron intake was 8.3mg/d and 10/5mg/d at 4 and 6 months of age respectively. Calories from solids provided 22.5% of total energy intake at 4 months of age, and nearly 32% at 6 months of age. The average energy and protein intakes of all infants were less than the RDA for calcium and iron at 4, 6 months of age.

• Journal of Oral Medicine and Pain
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• 제13권1호
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• pp.13-21
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• 1988

The author studied the vertical height of tooth crown and the amounts of alveolar bone resorption with age. All 84 subjects(44 male, 40female) who visited Dental hospital of Wonkwang University with no history of sever periodontal disease and no experience of periodontal surgery. 84 subject were divided into 3 groups by age, that is, group I(28-32yrs), group II(38-42yrs), and group III(48-52yrs). Informal radiogram with bite wing film(horizontal angulation : $0^{\circ}$, vertical angulation : $+5^{\circ}~+10^{\circ}$) were taken on premolar and molar area. The distances from cusp tip to cementoenamel junction (vertical height of tooth crown) and from cementoenamel junction alveolar crest(amount of alveolar bone resorption) were measured, and then recorded data from 946 teeth were statistically analysed. This study was undertaken to obtain the data for age estimation by the changes of tooth crown height and alveolar bone resorption in the point of forensic odontology. The obtained results were as follows : 1. The average crown height of mandibular right 1st. molar was 7.1mm in group I, 6.7mm in group II, and 6.6mm group III, and the average amount of alveolar bone resorption on mandibular right 1st. molar were 1.8mm in group I, 2.5mm in group II, and 3.0mm in group III. Ratio of tooth crown height to amount of alveolar bone resorption was 4.0:1 in groupI, 2.7:1 in group II, and 2.2:1 in group III, the ratio was decreased with age. 2. In comparison with upper teeth and lower teeth in ipsilateral side, the average value of tooth crown height and amount of alveolar bone resorption were slightly higher in upper arch than those in lower arch, but there was not a statistically significant difference. 3. The ratio of height of tooth crown to amount of alveolar bone resorption was decreased with age, and which depended mainly upon the change of amount of alveolar bone resorption rather than the change of tooth crown height.